1225204 has 6 divisors (see below), whose sum is σ = 2144114. Its totient is φ = 612600.

The previous prime is 1225183. The next prime is 1225219. The reversal of 1225204 is 4025221.

It can be written as a sum of positive squares in only one way, i.e., 1205604 + 19600 = 1098^2 + 140^2 .

It is a super-2 number, since 2×1225204² = 3002249683232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153147 + ... + 153154.

2^1225204 is an apocalyptic number.

It is an amenable number.

1225204 is a deficient number, since it is larger than the sum of its proper divisors (918910).

1225204 is a wasteful number, since it uses less digits than its factorization.

1225204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306305 (or 306303 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 1225204 is about 1106.8893350286. The cubic root of 1225204 is about 107.0046872492.

The spelling of 1225204 in words is "one million, two hundred twenty-five thousand, two hundred four".